737121 is the PIN Code of Soreng, which is located in South Sikkim district, Sikkim state.
Soreng Post Office is located at Soreng, South Sikkim of SIKKIM state. It is a Branch Post Office. A Post Office (PO) / Dak Ghar is a facility in charge of sorting, processing, and delivering mail to recipients. POs are usually regulated and funded by the Government of India (GOI). Pin code of Soreng PO is 737121. This Postoffice falls under Sikkim postal division of the West Bengal postal circle.